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Errors on TCM 900

posted by  Adi2727 on  Thu Aug 1 04:35 CST 2013
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last visit: Mon Nov 18 10:37 CST 2013
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Hi, everybody!

This is my first post here since I drive a RWD 960... This is my second Volvo. The other one is a 440.

The recently purchased '91, 2.0T, 964 looks very well for his age, no rust and a clean engine, but is having some issues which I'm trying to solve.

Main problems are on TCM, with the following errors:
- 342, ac blocking relay;
- 242, turbo control valve;
- 423, throttle pos sensor;
- 421, faulty boost pressure
The blocking relay is changed but the error remains...
I'm thinking that all those faults might came from a bad wire, or faulty turbo module... Any hints?

The small issues are: the flickering speedo, odometer and reverse light switch. Maybe this info will be helpful for the big picture.

Thanks for help!
Adi

--
Volvo 960, 2.0t, 1991






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New Errors on TCM [900]
posted by  Adi2727  on Thu Aug 1 04:35 CST 2013 >


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